Products in promotion

Hi,

It will first depends on how you set discounts on the products.

Regards,

Hi,

That's right, there is no such kind of filter in the HikaShop product listing (menu/modules).
But it is possible to add such feature using a plugin and there are two different solutions for the implementation.

You can use a plugin which will add settings when you configure a product listing menu/module (like HikaMarket do for the settings "show sold by" or "link vendor category to vendor page").
Then the plugin can read the setting when a product listing is displayed.

The other solution is to have a plugin which contains the ID of the modules/menu it has to filter.
The plugin "hikashop / productvendorfilter" currently do this job and you can use this plugin as a base for a new one.
Thanks to it, you can copy the plugin (to have a new one) and change the part of the filter

$vendor = hikamarket::loadVendor(false);
$filters[] = 'b.product_vendor_id = ' . (int)$vendor;

$c .= ' INNER JOIN ' . hikashop_table('discount').' AS discount ON discount.discount_type = \'discount\' AND (discount.discount_product_id = b.product_id OR discount.discount_product_id LIKE CONCAT(\'%,\', b.product_id, \',%\')';
$filters[] = 'discount.discount_published = 1';
$filters[] = '(discount.discount_start = 0 OR discount.discount_start >= ' . time().')';
$filters[] = '(discount.discount_end = 0 OR discount.discount_end <= ' . time() .')';